Use antifriction additive in gearbox?

[heiwaz]

Hello, I've thinking to use an antifriction additive in my 986s gearbox, because the shifter is quite hard specially when engine is cold, and insert the 1st sometimes is very difficult.
This additive is like, Metal Lube, Superkote2000,...

I'm going to change the oil transmission, too, (SAE 75 W 90)

Somebody, has used this additive? do you recommend me?

[JFP in PA]

Porsche uses a unique spec gear box lubricant that several companies (the honest ones anyway) have admitted they cannot match. We spend a lot of time draining aftermarket lubricants that did not work out of these gearboxes and replacing it with the Porsche product; which always results in the customer commenting on how much better the car shifts, how quite the trans is, etc.

Change your gear oil and refill with the OEM product, more than likely your issues will disappear………..

[heiwaz]

Originally Posted by JFP in PA

Change your gear oil and refill with the OEM product, more than likely your issues will disappear………..

Yes, of course, I will use only the OEM oil (SAE 75 W 90), write in the technic specs of workshop manual, but I want to know if can I add to the oils this additive, and if someone has used.

[JFP in PA]

We have never found one that did anything positive...........

[bklyn]

+1 with JFP I have a buddy who is the parts mgr. for Champion Porsche in Pompano Fl. he advised there are certain fluids you do not want to mess with unless its from Porsche and designed for your vehicle. He always reminds me that the engineers at Porsche do know what they are doing!